OUTBURST CYCLE LENGTH VARIATIONS iN THE DWARF NOVA EM CYGNI

Автор(и)

  • I. L Andronov Astronomical Observatory, Odessa State University, Україна
  • L. L. Chinarova Astronomical Observatory, Odessa State University, Україна

DOI:

https://doi.org/10.18524/1810-4215.1996.9.108832

Ключові слова:

Stars, Cataclysmic, Dwarf Novae, EM Cyg

Анотація

The cycle length of the dwarf nova EM Cyg undergoes season-to-season changes which may be interpreted by changes of the accretion rate caused by a solar-type activity of the secondary star. The mean brightness of EM Cyg varies with a cycle of ≈ 3000d and is highly  correlated with an amplitude of the sine-like variations. Unexpectedly no correlation was found between the seasonal values of the cycle length and the mean value or amplitude.

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2017-08-16

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